3.25 d

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Nina Gautam 1K
Posts: 52
Joined: Fri Sep 29, 2017 7:04 am

3.25 d

Postby Nina Gautam 1K » Mon Nov 06, 2017 10:37 am

When writing the chemical formula for hydrogen telluride, why is it H2Te and not TeH2?

Ethan-Van To Dis2L
Posts: 50
Joined: Fri Sep 29, 2017 7:05 am

Re: 3.25 d

Postby Ethan-Van To Dis2L » Mon Nov 06, 2017 11:15 am

Typically we write the cation first, then the anion which means it would be H2Te

Ryan Sydney Beyer 2B
Posts: 82
Joined: Fri Sep 29, 2017 7:07 am
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Re: 3.25 d

Postby Ryan Sydney Beyer 2B » Mon Nov 06, 2017 12:30 pm

In the 1900's a man named Edwin Hill came up with a system of writing chemical formulas that is still used widely today. His system states that carbon atoms are listed first, hydrogen atoms next and then the number of all other elements in alphabetical order. There are many exceptions to his system however, such as the order of elements in ionic compounds, as well as the order of acids ...

Alissa Stanley 3G
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Joined: Fri Sep 29, 2017 7:06 am
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Re: 3.25 d

Postby Alissa Stanley 3G » Thu Nov 09, 2017 1:25 am

What specific formulas will we have to have memorized? Problem #25 requires you to give the chemical formula, but some (including in other problems) would only be known from memorization.

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